If you ever find a suitable case for your Contempora, could you please inform everyone? I have 2 guys in my orchestra who have them and are suffering from carrying the very heavy original cases. They love the horns but not the combined weight!
Will do, for sure. After the comments here and a chat with Horn Guys didn't turn up any options, I'm looking twice at this Protec Max case to see if taking a hacksaw to the corner of the accessory container might work, without destroying the structural integrity of the case.
My other option is to try and get the latch hardware on the original case reinforced as that was the weak point I was worried about. 13yo is big and strong enough to haul it around - I just was worried about it popping open.